Re: [Cpufreqd-user] CPU frequency control

[Mattia D. <mal...@li...>]

On Wed, Feb 08, 2012 at 10:10:52PM -0500, Carlos Andres Perilla Rozo wrote:
> 
> Hi there,
> I've used cpufreqd by 2 years and recently I've bought a laptop with a
> quad-core chip, so I tried to control only one CPU by changing the
> cpufreqd.conf.  I want to do that because many programs load only one

yes, you can by assigning profiles to specific cpus in your rule
configuration. From the manpage (man cpufreqd.conf):
   [Rule]
       ...
       profile
	      A character string that must match a [Profile] section
	      name property.  A Rule can also associate profiles to
	      single cpus providing a list  of  the  format  CPU%d:%s
	      separated  by  semicolons  (";"),  e.g.:
	      profile=CPU0:profile0;CPU1:profile1.  The keyword "ALL"
	      can be used to indicate that all cpus must have the
	      profile applied.  The "ALL" keyword has a lower priority
	      so you can mix up CPU%d and ALL meaning that if no
	      specific  profile  is  supplied, the "ALL" one will be
	      used. [REQUIRED]

then the CPU plugin can be used to monitor individual cores rather than
all at the same time.

> core at a time so why to change all CPU speeds. Can I change
> individually and automatically the CPU speed one at a time?

managing separate profiles on separate cores may snd up being quite
tricky so if your requirements are not too complex you may want to try
to use the ondemand governor on all cpus and that should already take
care of only scaling up the loaded core.

Thanks!
-- 
mattia
:wq!